I don't know if Kodak is still around, but my wife has an early Kodak digital camera that uses 1.4MB floppy disks. Not even a megapixel resolution, about 2/3rds that? Stupid camera made worthless pictures.
At one time Kodak had a digital camera which was simply a Nikon N90s with a replacement digital back. The back itself was about as large as a large camera by itself.
It was a very fine camera but the digital back was only 1.3MP. At the time tho that was cutting edge and a whole lot of professional journalist photographers used them.
That was more than enough resolution for a newspaper photo.
An interesting fact was you could restore it to a film camera by simply putting an original film back on it. That was so early in digital that a lot of people did that.